RISCV on THALIUM/tags/riscv/Recent content in RISCV on THALIUMHugoen-usCopyright (c) 2026, all rights reserved.Tue, 07 Nov 2023 12:00:00 +0100ECW 2023: The Calculator in Shadow (write-up)/posts/ecw-2023-the-calculator-in-shadow-write-up/Tue, 07 Nov 2023 12:00:00 +0100/posts/ecw-2023-the-calculator-in-shadow-write-up/<strong>The Calculator in Shadow</strong> was a hard pwn challenge created for the European Cyber Week CTF 2023 qualifiers. It included exploiting a RISC-V calculator running on top of a customized QEMU that featured a poorly implemented shadow stack.